All vulnerabilities

Servers and applications

CVE-2018-14847

MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated attackers to write arbitrary files due to a directory traversal vulnerability in the WinBox interface.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 1 Dec 2021.

Severity
Critical 9.1
Published
2 Aug 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
96% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
MikroTik RouterOSServers and applications · cpe:o:mikrotik:routeros
  • Every version up to 6.42

Known exploited

CISA name
MikroTik Router OS Directory Traversal Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
1 Jun 2022
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-14847
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-14847